Petroleum pollution affects soil chemistry and reshapes the diversity and networks of microbial communities
Soil is the bearing centre of terrestrial ecosystems. Oil pollution leads to changes in the physical and chemical properties of soil to varying degrees. Polluted soils form a unique microbial species composition, which provides rich materials for the bioremediation of oil-contaminated soil through b...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Ecotoxicology and Environmental Safety |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651322009691 |
| _version_ | 1798046354785697792 |
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| author | Yongquan Li Caili Li Ying Xin Tao Huang Jin Liu |
| author_facet | Yongquan Li Caili Li Ying Xin Tao Huang Jin Liu |
| author_sort | Yongquan Li |
| collection | DOAJ |
| description | Soil is the bearing centre of terrestrial ecosystems. Oil pollution leads to changes in the physical and chemical properties of soil to varying degrees. Polluted soils form a unique microbial species composition, which provides rich materials for the bioremediation of oil-contaminated soil through biological enhancement. Understanding the microbial composition of petroleum-contaminated soil can provide a better biological method for soil remediation. Based on this, 16 S rRNA and ITS genetic markers were used to analyse the bacterial and fungal microbiota in petroleum-contaminated soil, and their physical and chemical properties (total organic carbon, alkaline hydrolysable nitrogen, total phosphorus, total potassium, available potassium, Cu, Zn, and Cd) were measured. It was found that petroleum pollution can significantly reduce the abundance and diversity of bacteria and fungi in the soil and significantly promote the relative abundance of Proteobacteria, Pseudomonas, Pseudoxanthomonas and Pseudoallescheria, which changed the dominant flora of bacteria and fungi and reshaped the co-occurrence network relationship between bacteria and fungi in oil-contaminated soil. The content of total organic carbon in petroleum-contaminated soil was significantly higher than that in uncontaminated soil, while the content of alkaline hydrolysable nitrogen and available potassium was significantly lower than that in uncontaminated soil, and the content of Cu significantly increased after pollution. Total organic carbon is the key driving factor that changes oil-contaminated soil microorganisms and plays a significant role in regulating the remodelling and composition of the microbial community in oil-contaminated soil. This study laid a solid theoretical foundation for the bioremediation of oil-contaminated soil. |
| first_indexed | 2024-04-11T23:36:23Z |
| format | Article |
| id | doaj.art-ede14cd919f54b47bd627bfd8a215c9e |
| institution | Directory Open Access Journal |
| issn | 0147-6513 |
| language | English |
| last_indexed | 2024-04-11T23:36:23Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj.art-ede14cd919f54b47bd627bfd8a215c9e2022-12-22T03:56:57ZengElsevierEcotoxicology and Environmental Safety0147-65132022-11-01246114129Petroleum pollution affects soil chemistry and reshapes the diversity and networks of microbial communitiesYongquan Li0Caili Li1Ying Xin2Tao Huang3Jin Liu4School of Medicine, Northwest Minzu University, Lanzhou, China; Key Laboratory of Environmental Ecology and Population Health in Northwest Minority Areas, State Ethnic Affairs Commission, Lanzhou, China; Corresponding author at: School of Medicine, Northwest Minzu University, Lanzhou, China.School of Medicine, Northwest Minzu University, Lanzhou, ChinaSchool of Medicine, Northwest Minzu University, Lanzhou, ChinaSchool of Medicine, Northwest Minzu University, Lanzhou, ChinaSchool of Medicine, Northwest Minzu University, Lanzhou, ChinaSoil is the bearing centre of terrestrial ecosystems. Oil pollution leads to changes in the physical and chemical properties of soil to varying degrees. Polluted soils form a unique microbial species composition, which provides rich materials for the bioremediation of oil-contaminated soil through biological enhancement. Understanding the microbial composition of petroleum-contaminated soil can provide a better biological method for soil remediation. Based on this, 16 S rRNA and ITS genetic markers were used to analyse the bacterial and fungal microbiota in petroleum-contaminated soil, and their physical and chemical properties (total organic carbon, alkaline hydrolysable nitrogen, total phosphorus, total potassium, available potassium, Cu, Zn, and Cd) were measured. It was found that petroleum pollution can significantly reduce the abundance and diversity of bacteria and fungi in the soil and significantly promote the relative abundance of Proteobacteria, Pseudomonas, Pseudoxanthomonas and Pseudoallescheria, which changed the dominant flora of bacteria and fungi and reshaped the co-occurrence network relationship between bacteria and fungi in oil-contaminated soil. The content of total organic carbon in petroleum-contaminated soil was significantly higher than that in uncontaminated soil, while the content of alkaline hydrolysable nitrogen and available potassium was significantly lower than that in uncontaminated soil, and the content of Cu significantly increased after pollution. Total organic carbon is the key driving factor that changes oil-contaminated soil microorganisms and plays a significant role in regulating the remodelling and composition of the microbial community in oil-contaminated soil. This study laid a solid theoretical foundation for the bioremediation of oil-contaminated soil.http://www.sciencedirect.com/science/article/pii/S0147651322009691SoilPetroleumMicroorganismMetabolism |
| spellingShingle | Yongquan Li Caili Li Ying Xin Tao Huang Jin Liu Petroleum pollution affects soil chemistry and reshapes the diversity and networks of microbial communities Ecotoxicology and Environmental Safety Soil Petroleum Microorganism Metabolism |
| title | Petroleum pollution affects soil chemistry and reshapes the diversity and networks of microbial communities |
| title_full | Petroleum pollution affects soil chemistry and reshapes the diversity and networks of microbial communities |
| title_fullStr | Petroleum pollution affects soil chemistry and reshapes the diversity and networks of microbial communities |
| title_full_unstemmed | Petroleum pollution affects soil chemistry and reshapes the diversity and networks of microbial communities |
| title_short | Petroleum pollution affects soil chemistry and reshapes the diversity and networks of microbial communities |
| title_sort | petroleum pollution affects soil chemistry and reshapes the diversity and networks of microbial communities |
| topic | Soil Petroleum Microorganism Metabolism |
| url | http://www.sciencedirect.com/science/article/pii/S0147651322009691 |
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